noun.
The shell of a clam.
noun.
A dredging bucket with hinges like the shell of a clam.
noun.
In foodservice, the white, usually styrofoam box given to consumers with take-out food.
noun.
An object which has a hinge on one edge and two surfaces that close together
noun.
An amphitheater, especially an outdoor amphitheater; the semi-circular acoustic backdrop behind and above the performers.
adjective.
similar to the operation of a clam's shell, having a hinge with two sides closing together